Curing of epoxydiane resins by modified hardener of amine type

The paper presents the results of a comprehensive study of changes in the properties of filmforming compositions based on epoxydiane oligomer. Curing was carried out by a modified hardener. The degree of structurization changes depending on the amount of the hardener. The effect of timetemperature conditions, ratio of initial oligomers, and nature of the solvent on the process of epoxydiane resin curing by modified polyamide was determined

Relevance of application of irradiated starter cultures to production of fermented milk products

Nowadays yogurt, fermented milk products, enriched with biologically active substances, acquire increasingly important significance in people's diets. The traditional method for producing fermented milk products and yogurt is to ferment the milk using starter cultures. The purpose of this research was to figure out if it is possible to use suspensions of probiotic microbial cultures irradiated with ionizing radiation to produce yoghurt products. Liquid live suspensions of bifidobacteria and lactobacilli, as well as a mixture of bifidobacteria, lactobacilli, propionibacteria and lactic acid streptococci were taken as a research model. The goal was achieved by receiving the yoghurt products enriched with active secondary metabolites due to using the suspensions of lysed cells of different microorganisms. We studied physico-chemical and organoleptic properties of the received products after 1, 7 and 14 days of storage

Polyimide use in photolithography process

Polyimides thanks to the unique properties such us thermal stability, good mechanical and electrical characteristic, resistance to high energy a wide temp erature range, excellent planarization popular in engineering and technology, particular in microelectronics. The production efficiency can be improved by providing photoresist properties to the polyimide materials using in microelectronics technology due to reduction of process steps and low bad production. Conversation is about, the creation of photosensitive pol-yimides negative and positive type containing reactive groups, which can by capable of being polymerized by UV-light with photo initiator. The main aim of this work increase the sensitivity, resolution and heat resistance of the material, on the base of a photosensitive polyimide composition. A new photosensitive polyimide composition based on polyamide acid solution in an organic solvent, tetramaleinamidoasid with the light-sensitive component. As show in the article, the possibility to create polymer cposs-linked structure which can explain solubility difference after UV-radiation exposure in the chemical natural of the compounds. The composition has shown good results in photosensitivity and other properties

Modification of epoxy resin by oligomaleimidohydroxyphenylene

The article is devoted to development and research of new film materials on the basis of epoxy pitches with the improved properties. The assessment of protective properties is defined by electrochemical methods of research, and also with physic-mechanical that gives the most complete idea of the corrosion processes proceeding under a paint and varnish film. Data of researches allowed to correct covering structure for separate scopes for the purpose of achievement of high extent of protection of metal surfaces

Multinuclear, heteronuclear, and heterovalent complexes in solutions

The results of investigations on the multinuclear 3d-metal compounds in solutions are generalized. The conditions for their formation, the stability, properties, composition, and interaction of the unpaired electrons of the metal centers are discussed. Interrelation between the magnetic properties, composition, and structure of the multinuclear complexes of paramagnetic ions is analyzed. © 1998 MAEe cyrillic signK Hayκa/Interperiodica Publishing

LEADING FACTORS IN THE FORMATION OF ETHNOCULTURAL IDENTITY (on the Example of the Italian Republic)

The article deals with the problem of the ethno-cultural, regional and national identity of Italians, their interweaving, as well as the leading factors influencing the formation and development of these identities. Particular attention is paid to the linguistic factor (minority languages and dialects), the linguistic situation on the territory of the Italian state, as well as the problem of delineation of identities. This article presents the results of a survey conducted in 2021–2022 among Italian youth (generation Y), demonstrating the influence of dialect and other factors on the formation of identities.В статье рассматривается проблема этнокультурной, региональной и национальной идентичности итальянцев, их переплетение, а также ведущие факторы, оказывающие влияние на становление и развитие перечисленных идентичностей. Особое внимание уделяется лингвистическому фактору (миноритарным языкам и диалектам), языковой ситуации на территории итальянского государства, а также проблемы разграничения идентичностей. В данной статье представлены результаты опроса, проведенного в 2021–2022 среди итальянской молодежи (поколение Y), демонстрирующие влияние диалекта и других факторов на формирование идентичностей

Main marketing trends in the Russian cinema market in the current realities

The article examines current marketing trends in Russian cinema and film industry, which have emerged in the 21st century in Russian cinema and international federation of film societies. The aim of the study is to define the directions of marketing strategies for enlarging the target audience and extracting the maximum possible profit from cinematographic business. Based on key works on marketing and their own observations, the authors investigated the concept and essence of marketing, its content and specifics. Various ways of increasing the audience of cinemas and customer loyalty programmes were analysed. The main societal trends, which influence the creation of cinematographic images in contemporary cinematography, were identified, and the factors of modern society development and their correlation with the world of cinematography, including the degree of their influence, were pointed out. The results of the study can serve as a basis for evaluating the effectiveness of marketing strategies

Application of interactive forms of professional self-determination: experience «Nizhniy Tagil State Professional College»

The article discusses the interactive forms of professional selfdetermination, used by the GAPOU SO N. A. Demidov ": professional tests, excursions to the sites of the Regional Championship “Young Professionals” (WorldSkills Russia), Laboratory of professions "Old sable", interactive platform "PROFnavigator"В статье рассматриваются интерактивные формы профессионального самоопределения, применяемые ГАПОУ СО «НТГПК им. Н. А. Демидова»: профессиональные пробы, экскурсии на площадки проведения Регионального чемпионата «Молодые профессионалы» (WorldSkills Russia), лаборатория профессий «Старый соболь», интерактивная площадка «ПРОФнавигатор

Protective properties of modified epoxy coatings

Article is devoted to the development and research of new film materials based on epoxy resins with improved properties. Evaluation of protective properties is determined by electrochemical and physico-mechanical methods of research that provides the most complete picture of the corrosion processes occurring under the paint film . These studies allowed to adjust the coating composition to the individual applications in order to achieve a high degree of protection of metal surfaces